Re: Another Invasive
Coming from a country where the Giant Hogweed is common, I can tell you all of that info is true. The sap in particular is very corrosive and will leave permanent scars on your skin. They are very impressive plants and can grow very quickly and produce thousands of seeds. I have seen then 10 feet tall in shady moist places but they can grow on open river banks too.
Keep pets and kids well away.